Answer to Question #131310 in Physics for ashlee pruitt

Question #131310

Alex runs 124 meters at a speed of 6.5 m/s and then walks 155 meters at a speed of 3.3 m/s. What was her average speed?

Expert's answer

"v_{avr}=\\frac{S_1+S_2}{t_1+t_2}=\\frac{S_1+S_2}{S_1\/v_1+S_2\/v_2}="

"=\\frac{124+155}{124\/6.5+155\/3.3}=4.22(m\/s)"

Learn more about our help with Assignments: Physics

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. Which of the following is not a part of scientific process?a. Data collection and its inspection.b.
2. CLASSWORK: A uniform metre rule of mass 90g is pivoted at the 40cm mark. If the metre rule is in equ
3. What volume of 0.558 M
4. Superphosphate, or sometimes called triple phosphate, is a commonly used water-soluble fertilizer. I
5. Limestone (𝐶𝑎𝐶𝑂3) dissolves in hydrochloric acid (𝐻𝐶𝑙) for form calcium chlorid
6. In the sketch, the cylinder L has a mass of 1300kg and cross sectional area 0.2m^2. The piston S has
7. A person is walking north on a sidewalk at about 2.90 mph. At the same time the wind is blowing from